Samples depends on 0.2.3, but actual svn version is 0.2.4

[Barys Ilyushonak]

./jquantlib-all/mvn clean install failed due to samples depends on 0.2.3

======================
Additional Information
======================
I have changed jquantlib-samples\pom.xml to use
    <parent>
        <groupId>org.jquantlib</groupId>
        <artifactId>jquantlib-all</artifactId>
        <version>0.2.4-SNAPSHOT</version>
        <relativePath>../jquantlib-all/pom.xml</relativePath>
    </parent>

and it works